Rita and Alfred Johnson offered $185,000 for a home that had been priced at $190,000. After some negotiating, the Johnsons and the seller agreed on a selling price of $186,500. What is the amount of the mortgage if they make a 20% down payment?

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Step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

68719476736

step-by-step explanation:

8*8*8*8*8*8*8*8*8*8*8*8=68719476736